Patents by Inventor Johann Semerad

Johann Semerad has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Transistor clamping device
    Patent number: 8076774
    Abstract: A transistor-clamping device for a transistor is provided with a holding block and a spring. The holding block engages over the transistor, so that the spring is pre-tensioned. A pressure plate is provided between the holding block and the transistor. The spring fixes the pressure plate on the transistor, so that a uniform pressure is applied to the transistor via the pressure plate, and, at the side facing away from the pressure plate, the latter accordingly provides a good thermal conduction to a cooling element.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: December 13, 2011
    Assignee: Rohde & Schwarz GmbH & Co. KG
    Inventors: Bernhard Kaehs, Johann Semerad
  • TRANSISTOR CLAMPING DEVICE
    Publication number: 20100079958
    Abstract: A transistor-clamping device for a transistor is provided with a holding block and a spring. The holding block engages over the transistor, so that the spring is pre-tensioned. A pressure plate is provided between the holding block and the transistor. The spring fixes the pressure plate on the transistor, so that a uniform pressure is applied to the transistor via the pressure plate, and, at the side facing away from the pressure plate, the latter accordingly provides a good thermal conduction to a cooling element.
    Type: Application
    Filed: September 5, 2007
    Publication date: April 1, 2010
    Applicant: Rohde & Schwarz GmbH & Co. KG
    Inventors: Bernhard Kaehs, Johann Semerad